Methyl 4-(difluoromethyl)pyridine-3-acetate
Ethyl 4-(aminomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-(difluoromethyl)pyridine-4-acetate
Ethyl 3-(aminomethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate